kafka StreamThreadTotalBlockedTime 源码
kafka StreamThreadTotalBlockedTime 代码
文件路径：/streams/src/main/java/org/apache/kafka/streams/processor/internals/StreamThreadTotalBlockedTime.java
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.kafka.streams.processor.internals;
import java.util.Map;
import java.util.function.Supplier;
import org.apache.kafka.clients.consumer.Consumer;
import org.apache.kafka.common.Metric;
import org.apache.kafka.common.MetricName;
public class StreamThreadTotalBlockedTime {
private final Consumer<?, ?> consumer;
private final Consumer<?, ?> restoreConsumer;
private final Supplier<Double> producerTotalBlockedTime;
StreamThreadTotalBlockedTime(
final Consumer<?, ?> consumer,
final Consumer<?, ?> restoreConsumer,
final Supplier<Double> producerTotalBlockedTime) {
this.consumer = consumer;
this.restoreConsumer = restoreConsumer;
this.producerTotalBlockedTime = producerTotalBlockedTime;
}
private double metricValue(
final Map<MetricName, ? extends Metric> metrics,
final String name) {
return metrics.keySet().stream()
.filter(n -> n.name().equals(name))
.findFirst()
.map(n -> (Double) metrics.get(n).metricValue())
.orElse(0.0);
}
public double compute() {
return metricValue(consumer.metrics(), "io-wait-time-ns-total")
+ metricValue(consumer.metrics(), "io-time-ns-total")
+ metricValue(consumer.metrics(), "committed-time-ns-total")
+ metricValue(consumer.metrics(), "commit-sync-time-ns-total")
+ metricValue(restoreConsumer.metrics(), "io-wait-time-ns-total")
+ metricValue(restoreConsumer.metrics(), "io-time-ns-total")
+ producerTotalBlockedTime.get();
}
}
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